How do I find my LGL API Key?

Log in to your Little Green Light account, navigate to Settings > Integration Settings > LGL API to enable and copy your unique API key.

What fields are required to create a gift?

You must provide a `constituent_id`, an `amount` (numerical), and a `gift_date` (YYYY-MM-DD).

Can I associate a gift with a specific campaign?

Yes, when using the `record_new_donation` tool, you can include a `campaign_id`, `appeal_id`, or `fund_id` within the JSON body.

Little Green Light MCP Server for Claude Desktop 9 tools — connect in under 2 minutes

Name: Little Green Light
Availability: InStock
Author: Vinkius

modelcontextprotocol.io/quickstart/user

Built by Vinkius GDPR 9 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Get MCP Server for AI Agents

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Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install Little Green Light and 2,500+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Classic Setup·json

{
  "mcpServers": {
    "little-green-light": {
      // Your Vinkius token — get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Little Green Light MCP Server

Connect your Little Green Light account to any AI agent to automate your donor management and fundraising workflows. This MCP server enables your agent to manage constituent profiles, record new gifts, and query fundraising appeals directly from natural language interfaces.

Claude Desktop is the definitive way to connect Little Green Light to your AI workflow. Add the Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 9 tools in the chat interface — ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

Constituent Oversight — List and retrieve detailed profiles for all registered donors and organizations in your database
Gift Recording — Programmatically record new donations, pledges, and recurring gifts with associated amounts and dates
Fundraising Audit — Query active appeals, campaigns, and funds to monitor your fundraising efforts and allocations
Onboarding Automation — Create new donor records and update existing contact information seamlessly
Database Discovery — List all available organizational funds and campaign structures to map your financial logic

The Little Green Light MCP Server exposes 9 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Little Green Light to Claude Desktop via MCP

Follow these steps to integrate the Little Green Light MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using Little Green Light

Look for the 🔌 icon in the chat — your 9 tools are now available

Why Use Claude Desktop with the Little Green Light MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with Little Green Light through the Model Context Protocol.

Claude Desktop is the reference MCP client — it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage — your tokens never leave your machine, and connections go directly to the Vinkius Edge network

Little Green Light + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the Little Green Light MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies — all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Little Green Light MCP Tools for Claude Desktop (9)

These 9 tools become available when you connect Little Green Light to Claude Desktop via MCP:

create_new_donor

Requires first_name, last_name, or org_name. Create a new donor constituent

get_donor_details

Get details for a specific constituent

get_gift_details

Get details for a specific gift

list_donation_gifts

List recorded gifts and donations

list_donor_constituents

List donor constituents

list_fundraising_appeals

List active fundraising appeals

list_fundraising_campaigns

List fundraising campaigns

list_organizational_funds

List available organizational funds

record_new_donation

Requires constituent_id, amount, and gift_date. Record a new donation gift

Example Prompts for Little Green Light in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with Little Green Light immediately.

"List all constituents in my Little Green Light account."

"Record a new donation of $100.00 for constituent ID '12345' dated today."

"Show active fundraising appeals."

Troubleshooting Little Green Light MCP Server with Claude Desktop

Common issues when connecting Little Green Light to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting — wait a few seconds.

Little Green Light + Claude Desktop FAQ

Common questions about integrating Little Green Light MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully — if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL — Claude auto-negotiates the transport protocol.